Honeywell S437A1025/U Sail Switch 120V 8A 1-1/2 in. x 4 in. Sail

Product Description

The HONEYWELL S437A1025/U Sail Switch is designed to respond to air velocity in heating or warm air ducts, such as those found in farm crop dryers. This 1 SPST switch completes a 24V or line voltage burner control circuit when the blower or fan achieves a preset air velocity, typically between 1900 fpm and 2250 fpm. It features a 1-1/2 inch x 4 inch sail and a 3-1/2 inch insertion length.

• Micro Switch snap switch is operated by metal sail inserted in an air stream.
• Sail can be trimmed to one-half the original size to double the velocity required to close the snap switch contacts.
• Switch differential can be manually adjusted by turning a knurled knob on the snap switch.

Product Highlights

Responds to air velocity in HVAC ducts, activating burner control circuits.

Product Information

Standard Information

• Brand: HONEYWELL
• Manufacturer Part Number: S437A1025/U
• Country of Origin: Mexico